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Finding the Fourth Proportional to 18,771,205.76, 25,904,264.16 and 10,186,501.76

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Solution

The fourth proportional to 18,771,205.76, 25,904,264.16 and 10,186,501.76 is: 14,057,372.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771,205.76 : 25,904,264.16 = 10,186,501.76 : x
  2. Step 2: Convert to fraction form
    18,771,205.76/25,904,264.16 = 10,186,501.76/x
  3. Step 3: Cross multiply
    18,771,205.76x = 25,904,264.16 × 10,186,501.76
  4. Step 4: Simplify right side
    18,771,205.76x = 263,873,832,457,344.91
  5. Step 5: Solve for x
    x = 263,873,832,457,344.91/18,771,205.76
  6. Step 6: Final answer
    x = 14,057,372.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.